MOORING SYSTEMS FOR HOSTILE WATERS

Purpose of the mooring system is to maintain the floating drilling vessel within certain horizontal limits of the well's center line (usually not exceeding 5 to 6% of water depth) so that drilling operations can be successfully carried out. In general there are two types of mooring patterns which can be used with any particular type of vessel: omni-environmental loads from any attack angle (0 to 360 deg); and uni-directional pattern in which there is a strong, prevailing environmental direction. Paper analyses types of anchors, anchor-, cables and chains and presents in graphical form: wind, wave, drift and current loads: mooring forces vs displacement: chain deployment geometry; and hp requirements to deploy an anchor chain.

• Corporate Authors:

  Petroleum Engineer Publishing Company

  Box 1589
  Dallas, TX  United States  75221
• Authors:
  • Childers, M A
• Publication Date: 1973-5

Media Info

• Pagination: 6 p.
• Serial:
  • Petroleum Engineer International
  • Volume: 45
  • Issue Number: 5
  • Publisher: Petroleum Engineer Publishing Company

Subject/Index Terms

• TRT Terms: Anchoring; Dynamic loads; Force; Mooring
• Old TRIS Terms: Anchor forces
• Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00050171
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM